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Around the world, קאי (Kai , Cai , קאי ) is a common epicene forename. The given name קאי is characteristic of Macao, where it is quite a common unisex name, Guam, where it is quite a common feminine name, and Hong Kong, where it is quite a common gender-neutral name (explore the name in all countries). In absolute terms, this name is the most popular in India, China, and Germany. More frequently, קאי is the last name as well as the forename.
קאי is also a popular name for the fictitious and mythical characters: Kai Bartley , the fictional character from Grey's Anatomy; Kai Shiden , the fictional character from Mobile Suit Gundam; Kai von Mölln , the character from Thomas Mann's Buddenbrooks; Kai , the imaginary figure from the TV series ''Lego Ninjago", The Lego Ninjago Movie and Kai , the character in The Legend of Korra, and in many other works.